My wallet windows will not open.
I already started the "int" file and downloaded it.
I unpacked the file KotoSwingWalletUI but it did not appear executable from the wallet or bat.
I am lost on how to generate my address and the website for inline wallet is giving 504 Gateway error

You can either start directly the .jar file or create yourself a .bat file to start it (just google how to make java bat file).
But first and foremost, you need to install the wallet (click on the original file).
All of the above can happen only if you have Java installed on your PC.